flick on screen with ati usb

[come se f. a. <an...@gm...>]

Hi.
I've a problem with my ati remote usb and mythtv on my Asus
Digimatrix. I use the latest lirc from the site and kernel 2.6.21; the
ati_remote kernel driver is not loaded.
If I use lirc, it work but ever button press bring a little flick
(like noise) on screen. It seems that is not related with the "button"
statement in lircrc: even if I set to 0 or >0, I get such issue.

with the ati_remote kernel module I've no problem and the remote is
really responsive.
I noticed that the problem occurs even if I use the
stock remote for my asus digimatrix (using the it_87 driver).

Can someone give me some pointer or info ?

thank you,
antani